PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

23040CBearing,roller,self-Aligning

Lufkin Industries, Inc. Dba Power Transmission · NSN 3110-00-876-4387 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-876-4387 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-876-4387. Primary manufacturer part number: 23040C.
Features
  • Bearing,roller,self-Aligning — FSC 3110
  • Overall Outside Diameter: 310.00 MILLIMETERS NOMINAL MM
  • Standard Tolerance Designation: RBEC NO.1
  • Material: STEEL ROLLER
  • Style Designator: DOUBLE ROW, SPHERICAL ROLLERS, SELF-CONTAINED, OUTER AND INNER RACEWAYS CONCAVE, NON-SEPARABLE
  • Material: COPPER ALLOY OR ALUMINUM RETAINER
  • Material: STEEL INNER RING
  • Retainer Fabrication Method: MACHINED
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Roller construction
General Description

The Bearing,roller,self-Aligning, cataloged under National Stock Number 3110-00-876-4387, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Lufkin Industries, Inc. Dba Power Transmission. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 14 commercial cross-references from 11 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3110-00-876-4387
Primary Part Number23040C
Item NameBearing,roller,self-Aligning
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerLufkin Industries, Inc. Dba Power Transmission
StatusCANCELLED
Overall Outside Diameter310.00 MILLIMETERS NOMINAL MM
Standard Tolerance DesignationRBEC NO.1
MaterialSTEEL ROLLER
Style DesignatorDOUBLE ROW, SPHERICAL ROLLERS, SELF-CONTAINED, OUTER AND INNER RACEWAYS CONCAVE, NON-SEPARABLE
MaterialCOPPER ALLOY OR ALUMINUM RETAINER
MaterialSTEEL INNER RING
Retainer Fabrication MethodMACHINED
Surface FinishGROUND
Internal Fit-Up DesignationSTANDARD
Bore ShapeSTRAIGHT
Bore Diameter200.0 MILLIMETERS NOMINAL MM
MaterialSTEEL OUTER RING
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
4320-00-104-202723040 INTERCHANGEABLE
Valve Flapper,pump
Industrial Technologies and Services Llc
6685-00-276-130823040 INTERCHANGEABLE
Psychrometer
H-B Instrument Co
1680-00-476-008723040 INTERCHANGEABLE
Handla and Knob Ass
B E Aerospace Inc Services Div
3455-00-812-3584 INTERCHANGEABLE
Cutter,milling,end
2530-01-047-9566NW23040 INTERCHANGEABLE
Parts Kit,hydraulic Brake Wheel
Tld Wollard Llc
5133-01-382-437523040 INTERCHANGEABLE
Cutter,hole Forming,drive Shank
Keo Cutters Div of Masco Corp
Cross-Reference Index
Part NumberManufacturer
23040C Lufkin Industries, Inc. Dba Power Transmission (USA)
946302 Calgon Carbon Uv Technologies Llc Dba Hyde Marine (USA)
MS17133-64 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
23040YMW33 Timken Co Div the Timken Company (USA)
23040 Skf Usa Inc. (USA)
23040W33 Skf Usa Inc. (USA)
YMD-6897 Appleton Marine Inc (USA)
31155-29 Lake Shore Systems, Inc. (USA)
T23040 Timken Aerospace, Inc Dba Torrington Product (USA)
AP019876 Lufkin Industries, Inc. Dba Power Transmission (USA)
23040LBW33C0 Pt Components Inc Drive Div (USA)
200SD30 Timken Aerospace, Inc Dba Torrington Product (USA)
RS23040 Kaydon Corporation Dba Kaydon Corp (USA)
23040HL Fag Bearings Corporation (USA)
Related Parts
4320-00-104-2027INTERCHANGEABLE
VALVE FLAPPER,PUMP
23040
6685-00-276-1308INTERCHANGEABLE
PSYCHROMETER
23040
1680-00-476-0087INTERCHANGEABLE
HANDLA AND KNOB ASS
23040
3455-00-812-3584INTERCHANGEABLE
CUTTER,MILLING,END
2530-01-047-9566INTERCHANGEABLE
PARTS KIT,HYDRAULIC BRAKE WHEEL
NW23040
5133-01-382-4375INTERCHANGEABLE
CUTTER,HOLE FORMING,DRIVE SHANK
23040

Frequently Asked Questions

What is NSN 3110-00-876-4387?

NSN 3110-00-876-4387 is a Bearing,roller,self-Aligning, manufactured by Lufkin Industries, Inc. Dba Power Transmission, classified under FSC 3110 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3110-00-876-4387?

NSN 3110-00-876-4387 has 14 cross-referenced part numbers: 23040C (Lufkin Industries, Inc. Dba Power Transmission), 946302 (Calgon Carbon Uv Technologies Llc Dba Hyde Marine), MS17133-64 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 23040YMW33 (Timken Co Div the Timken Company), 23040 (Skf Usa Inc.) and 9 more.

What NSN replaces 3110-00-876-4387?

There are 6 known substitutes for 3110-00-876-4387: 4320-00-104-2027, 6685-00-276-1308, 1680-00-476-0087 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 23040C?

Key specifications for 23040C: Overall Outside Diameter: 310.00 MILLIMETERS NOMINAL MM; Standard Tolerance Designation: RBEC NO.1; Material: STEEL ROLLER; Style Designator: DOUBLE ROW, SPHERICAL ROLLERS, SELF-CONTAINED, OUTER AND INNER RACEWAYS CONCAVE, NON-SEPARABLE. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3110-00-876-4387 still in active supply?

NSN 3110-00-876-4387 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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